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利用1997～2007年24个工业行业的动态面板数据建立模型,分别就实物外包和服务外包对CO2排放的影响进行了实证分析。研究结果表明:中国国际外包隐含的CO2排放比例在上升,国内投入隐含的CO2排放比例在下降;人均产出与CO2排放的倒U型关系不显著;实物外包和服务外包对于中国工业CO2排放的影响存在差异,实物外包降低CO2排放的效果要好于服务外包;随着时间的推移,实物外包能减少CO2的排放,服务外包与CO2排放可能会呈现出先增加后降低的倒U型关系;污染型行业与清洁型行业的国际外包对CO2排放的影响存在差异。
Based on the dynamic panel data of 24 industrial sectors from 1997 to 2007, this paper empirically analyzes the impact of physical outsourcing and service outsourcing on CO2 emissions respectively. The results show that: the proportion of CO2 emissions implied by China’s international outsourcing is rising while the proportion of CO2 emissions implied by domestic investment is declining; the reciprocal U-shape relationship between per capita output and CO2 emissions is insignificant; the physical outsourcing and service outsourcing have a significant impact on China’s industrial CO2 The effect of emission reduction is better than that of service outsourcing. With the passage of time, in-kind outsourcing can reduce the emission of CO2, and service outsourcing and CO2 emission may show an inverted U-shaped relationship that firstly increases and then decreases. The impact of international outsourcing on polluting industries and clean industries on CO2 emissions is different.